Interviewer - Server > Configuration and customization > Registry settings > Interview Object Model settings
 
Interview Object Model settings
Registry settings for the Interview Object Model are stored under:
HKEY_LOCAL_MACHINE\Software\SPSS\mrInterview\3\IOM
Settings
DebugDirectory
If a value is specified for the DebugDirectory value then the Interview Object Model logs all post input and output. The filename contains the session token (a unique identifier for each interview), save point name, and whether it is input or output.
Default: No default setting.
See also
Registry settings